CN2612436Y - Improved two-face filter board and horizontal blade filter - Google Patents

Abstract

The utility model relates to an improvement to the dual sieve plate on filter and the horizontal leaf filter, in particular to the application in sieving viscid and high proportion substance such as sulfur in the sulfacid process, which is characterized by that the sieve plate center framework net is provided with a model plate with double-face embossed sieve holes like the shape of scale, the sieve plate is provided with a metal plate with holes which not only promotes the sieve efficiency and sieve viscid and high proportion substance, but also enhances the hardness of the whole sieve plate. By employing the sieve plate and the heat-preservation shell structure, the utility model can be applied to the sieve of the liquid sulfur.

Description

Improved double-face filter board and horizontal leaf-type filter

Technical field

Utility model is about the improvement to filter double-face filter board and horizontal leaf-type filter, relates in particular to be used for filtration big as viscosity such as acid production with sulphur process liquid sulphur, proportion high material medium.

Background technology

The two-sided filter plate of existing filter, as horizontal leaf-type filter filter plate, be by the different apertures grid of metal wire knitted and/or diagonal screen and/seat shape net symmetry is superimposed, and be fixed on the water conservancy diversion framework.This filter major defect is: the gap is little between lamination braided steel wire stratum reticulare, and original net sheet interlayer space is subject to filter pressure and by pressing, causes discharge opeing not smooth in filter process, and filtration resistance increases, and filtering velocity is slack-off, through-flow filter capacity variation; And the superimposed filter plate of woven steel fabric, whole stiffness is relatively low, easily causes filter plate distortion, influence filter effect, and aforementioned major defect is especially more outstanding when filtering the big material of viscosity and/or proportion, and is serious even be difficult to filtration.Secondly, the filtering surface metafiltration net of braided steel wire, difficult drop-off when filter cake easily embeds the filter screen slag dumping, easy cleaning not again, cause filter when refiltering not smooth.In addition, filter in use veil directly contacts material, the relatively easy damage, existing superimposed net sheet is again to be fixed on the hollow drain framework by rivet, veil damages the back and is difficult to dismounting and change, causes whole filter plate discarded, causes the waste of useful resources.Therefore this all by the superimposed filter of forming of woven wire cloth, for the filtration of special material such as some viscosity height, high specific gravity such as acid production with sulphur process liquid sulphur, then can not satisfy the filtration requirement.

Secondly, horizontal leaf-type filter with above-mentioned filter plates one-tenth, same inapplicable viscosity height, than the isolated by filtration of special material such as great, especially the filtration of acid production with sulphur process liquid sulphur, not only material viscosity is big, proportion is high, and needs to filter down in uniform temperature (135-145 ℃), and otherwise can cause material condensation knot can't filter admittedly, existing horizontal leaf-type filter lacks whole all risk insurance temperature structure again, therefore can't be used on the filtration of Molten sulphur at all.And existing filter adopts bottom feed usually, and this is for the high specific gravity material filtering, and the bottom feed material is difficult for being evenly distributed in filtration barrel body, also can influence filter effect.Besides, existing horizontal filter blade machine vibration unloads the cake device and is arranged on the filter plate top usually, vibration head is connected sealing and adopts high molecular polytetrafluoroethylbellows bellows or O-ring seals with vibrating arm, this is for the high-viscosity material filter cake, only the exciting force of top vibration transmission is not enough, be difficult for making filter cake and filter plate separating slag, and the vibration of single-ended top makes easily again high viscosity, high specific gravity medium filter cake easily veil be torn; And polytetrafluoroethylbellows bellows or O-ring seals are worked as being in the high temperature for a long time, not only cushion from exciting owing to the little nothing of rigidity, the dither head does not have from the exciting buffering vibration, easily cause the damage of filter plate and the damage of filter plate lower liquid outlet sealing to leak, and can cause that also bellows or sealing ring deliquescing distortion cause leakage.

Summary of the invention

The purpose of utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of improved filtration through-current capability big, and filter plate stiffness height is not yielding, especially is fit to the double-face filter board of high viscosity, high specific gravity media filtration.

Another purpose of utility model also is to provide a kind of surface layer filter screen removable double-face filter board.

The horizontal leaf-type filter that a purpose again of utility model is to provide a kind of suitable high viscosity, high specific gravity and needs the insulation filtration.

Utility model first purpose realizes, the main improvement is with the combined double-sided filter of all-metal silk braiding lamination, the center framework filter disc changes the two-sided template that convex type is arranged like fish scale shape filter opening into, utilize the fish scale filter opening of both sides to outer lug, increase and keep the spacing of superimposed filter disc, to guarantee the high throughflow ability under pressure filtration, skeleton template filter disc also helps the raising of lamination filter plate stiffness simultaneously.Specifically, the utility model double-face filter board comprises the water conservancy diversion framework of two-sided symmetrical multilayer build-up net sheet and fixed network sheet, it is characterized in that said filter plate center framework net sheet is the two-sided template that convex type is arranged like fish scale shape filter opening.The described two-sided fish scale of utility model hole can symmetric arrays, also can be various asymmetric geometries, and is easy for processing, and is excellent with symmetric arrays especially, and neither through-current capability is filtered in influence, easy again punching out processing.

Utility model is further to strengthen superimposed filter plate stiffness, can change braiding lining net into metal perforated plate, and metal perforated plate also helps keeping good spacing with fish scale pass plate simultaneously; In addition, utility model can also change the filter plate veil into filter opening and be the horn mouth structure, and horn mouth is towards filtering inboard taper hole type filter screen, stopped up by material with effective minimizing screen grid, filter through-current capability, simultaneously filtering surface side microstome thereby increase, can prevent effectively that also filter cake from infiltrating sticking net, more help filter cake and come off, can prolong filter cycle, veil also helps cleaning.

Utility model is changed easily for making flimsy surface layer filter screen damage the back, with superimposed filter plate and water conservancy diversion framework can not demolition fixedly riveted joint, changing dismountable bolt into connects, after metafiltration network loss so face to face is bad, can be able to independent replacing by Bolt dismantling, thereby avoid former fixedly riveted joint veil to damage the discarded whole filter plate in back.

The horizontal leaf-type filter of utility model, main improvement are to adopt the aforementioned structure filter, and change the filtration barrel body of filter into band hollow wall interlayer side face all risk insurance temperature structure, and it is big to make it to adapt to viscosity, the proportion height, and need the filtration of insulation filtration as Molten sulphur.The side face all risk insurance temperature structure of the said filtration barrel body of utility model can be that main cylinder adopts hollow wall sandwich, and the movable sealing lid adopts single-wall structure, and wall is provided with heating tube within it; Also can be that main cylinder and seal cover all adopt the hollow sandwich structure.In interlayer, pass to the vapours or the heat conduction wet goods thermal source of uniform temperature as required.

Utility model is for improving the uniformity of high specific gravity material in filtration barrel body, and charging aperture is arranged in the cylindrical shell major axis before and after the district one side or two for well, this is more suitable for the large tracts of land filtration especially; For improving viscous material is unloaded the cake effect, utility model also can change the vibration device for discharging the two vibrations of into filter plate both sides by the filter plate top; And, change the double-level-metal bellows into polytetrafluoroethylbellows bellows or O-ring seals, and both can improve sealing effectiveness, can improve vibrating effect again; Block up for avoiding the material medium in course of conveying, to meet cold junction simultaneously, all material import and export pipes of filter are provided with insulation jacket outward, and insulation jacket extended to end face of flange, and make the filter material that passes through be in all risk insurance temperature state, make it to be more suitable for the filtration of Molten sulphur.

Utility model filter plate inner framework not only makes superimposed filter plate still can keep enough filter spaces under pressure owing to adopt two-sided fish scale filter opening template, and favourable filtrate is unobstructed, has improved the filter plate through-current capability, but also has effectively improved the whole stiffness of filter plate.The taper hole veil has effectively prevented the filter cake adhesion especially, stops up filter opening, prolongs filter cycle, also is convenient to unload cake and cleans.Support filter screen and adopt metal perforated plate, improved superimposed filter plate stiffness especially, also help the replacing of surface layer filter screen simultaneously.Superimposed filter plate and water conservancy diversion framework flexibly connect, and can make flimsy surface layer filter screen obtain changing, and reduce and use maintenance cost.The horizontal leaf-type filter of utility model, because adopt aforementioned filter plate, and all risk insurance temperature tube structure, not only overcome the material filtering that existing horizontal leaf-type filter can not be used for high viscosity, big proportion and need insulation, improve the scope of application of filter greatly, and also can improve filter effect.One-sided or the bilateral charging in district in the cylindrical shell major axis has effectively guaranteed big even distribution than heavy material again, favourable raising filter effect.The two vibrating mechanisms in filter plate both sides have improved filter cake discharging effect, also help the service life that prolongs veil simultaneously.The double-level-metal sylphon seal of vibration head and vibrating arm; not only effectively prevented the leakage of medium under high temperature pressure; and, effectively protected the sealing of filter plate bottom discharging port because the cushioning effect of metal bellows also can be improved vibrating effect, prolonged sealing service life.Material import and export all risk insurance temperature structure has thoroughly avoided the chance cold junction of material medium in course of conveying stifled.

Below in conjunction with several non-limiting embodiment, further specify utility model.

Description of drawings

Fig. 1 is a utility model filter schematic diagram.

Fig. 2 and Fig. 3 are respectively Figure 1A-A to two kinds of filter-plate structure schematic diagrames of section.

Fig. 4 is the template structure for amplifying schematic diagram of fish scale shape filter opening.

Fig. 5 and Fig. 6 are respectively two kinds of fish scale holes and arrange vertical view.

Fig. 7 is a surface layer taper hole type filter screen cross section pass schematic diagram.

Fig. 8 supports lining net plan structure schematic diagram for metal perforated plate.

Fig. 9 is the horizontal leaf-type filter structural representation of utility model embodiment.

Figure 10 shows the two vibration in filter plate both sides schematic diagram.

Figure 11 is an all risk insurance temperature feed and exhaust tube structural representation.

The specific embodiment

Embodiment 1: referring to Fig. 1,2,4, and utility model double-face filter board 1, by the steel wire lining net 4 and the filtration veil 3 superimposed filter plate sheets 3 of forming of the two-sided fish scale shape of center framework filter opening template 5, both sides, the filter plate sheet is stretched on the water conservancy diversion framework 2 by bolt 6.

Fish scale shape filter opening template, fish scale hole 5.1 that it is protruding and 5.2 tow sides can symmetries, also can be asymmetric, and the arrangement in hole can symmetry (Fig. 5), also can asymmetric (Fig. 6).

Embodiment 2: referring to Fig. 3, as embodiment 1, the filtration veil 9 of fish scale pass plate both sides is a horn mouth taper hole type filter screen (Fig. 7) inwardly, and lining net 8 is metal perforated plate (Fig. 8), and the water conservancy diversion framework has enhancement Layer 7 outward.

Embodiment 3: referring to Fig. 9,10,11, the horizontal leaf-type filter of utility model, comprise the filter cylinder 10 of hollow wall structure (not providing among the figure) strap clamp cover, movable end socket inwall is provided with the heat(ing) coil 13 (also available electrothermal tube) that can lead to vapours, constitutes side face all risk insurance temperature filtration barrel body.Double-face filter board 1 just like embodiment 2 arranged side by side in the filter cylinder, cake mechanism 11 is unloaded in vibration, be set up in parallel at both sides, filter top 11.1 and 11.2 places, charging aperture 12 is arranged on two sides, filtration barrel body major axis front and back, every face has two of symmetries, all feed and exhaust tubes 17 radially have the insulation interlayer 15 that extends to flange 16, and the sealing 14 that cake mechanism is unloaded in vibration is double-level-metal bellows (directly not expressing among the figure).

For the horizontal leaf-type filter of small size, its charging aperture also can be arranged on one side.

Embodiment 4: as embodiment 3, omit heat(ing) coil in the seal cover, main cylinder and seal cover all adopt hollow sandwich side face all risk insurance temperature structure.

Claims (11)

1, a kind of double-face filter board comprises the water conservancy diversion framework of two-sided symmetrical multilayer build-up net sheet and fixed network sheet, it is characterized in that said filter plate center framework net sheet is the two-sided template that convex type is arranged like fish scale shape filter opening.

2,, it is characterized in that said fish scale shape filter opening symmetric arrays according to the described double-face filter board of claim 1.

3,, it is characterized in that said filter plate lining net is a metal perforated plate according to claim 1 or 2 described double-face filter boards.

4, according to the described double-face filter board of claim 3, its feature is a horn mouth taper hole type filter screen inwardly at said filter plate veil.

5,, it is characterized in that said superimposed filter plate is connected by bolt with the water conservancy diversion frame according to claim 1 or 4 described double-face filter boards.

6, a kind of horizontal leaf-type filter comprises horizontal filtration barrel body, the built-in double-face filter board that is set up in parallel, and cake mechanism is unloaded in vibration, and charging aperture, it is characterized in that said double-face filter board is that power 1-weighs 4 described arbitrary filters; Said filtration barrel body is band hollow wall interlayer side face all risk insurance temperature structure.

7, according to the described horizontal leaf-type filter of claim 6, it is characterized in that the movable sealing lid of said filtration barrel body is individual layer, internal face is provided with heating tube.

8,, it is characterized in that said charging aperture is arranged in the cylindrical shell major axis before and after the district one side or two according to the described horizontal leaf-type filter of claim 6.

9,, it is characterized in that said vibration unloads cake mechanism and have two to be arranged on the filter plate both sides according to claim 6,7 or 8 described horizontal leaf-type filters.

10,, it is characterized in that said vibration unloads cake mechanism and be sealed into the double-level-metal bellows according to the described horizontal leaf-type filter of claim 9.

11,, it is characterized in that on the cylindrical shell material turnover caliber to the insulation interlayer is arranged, and extend to end face of flange according to claim 6,7,8 or 10 described horizontal leaf-type filters.

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